Even if he did walk away, how is that any different than the mother putting the child up for adoption??
There needs to be a way for men to fairly have the right women already have, which is deciding not to become a parent between conception and birth. The "old keep your pants on" is not an answer, nor is the "use birth control"; if these are not good reasons to stop abortion or adoption by women, it should not be used to shame men. I am so tired of these double standards.